2/12/19 1 Feline Ophthalmology David A. Wilkie DVM, MS, Diplomate ACVO Professor Emeritus The Ohio State University [email protected]Agenesis n lack of development of the upper eyelid n superior - temporal 50% of the eyelid n usually bilateral Dziezyc/Millichamp modification What is wrong with this image? What the books tell you to do Dziezyc/Millichamp modification What is wrong with this image? What the books tell you to do Hair grows towards the cornea!! Lip to Lid From: Popesko P: Atlas of topographical anatomy of the domestic animals Parotid duct Facial v. Facial n. dorsal and ventral buccal branch Orbicularis oris Bucinnator
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Feline Ophthalmology - APVCapvc.ca/notes/2019notes/Wilkie6-vet.pdf · 2/12/19 1 Feline Ophthalmology David A. Wilkie DVM, MS, Diplomate ACVO Professor Emeritus The Ohio State University
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Whittaker CJG, Wilkie DA, et al: Lip commissure to eyelidtransposition for repair of feline eyelid agenesis. Vet Ophth 13:173-178, 2010
Parotid Duct
Oral Mucosa
Bridge incision
Bridge incision
Conjunctiva to oral mucosa8-0 vicryl simple continuous
Immediately Post-op
Immediately Post-op
2 months Post-op Symblepharon
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AnkyloblepharonSymblepharon
Preop-9 months old-has not seen since birth
Ankyloblepharon/Symblepharon
Preop
Postop
EntropionOften acquired, secondary to corneal disease
Permanent Lateral Tarrsoraphy
Modified Hotz-Celsus
A combined HC and lateral canthal closure had a 99.21% success rate of resolving lower lid entropion
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Eyelid Neoplasia
COPLOW - Comparative Ocular Pathology Laboratory of Wisconsin
Feline Eyelid Neoplasia
SCC SCC
Mast Cell Fibrosarcoma
Mast CellTumor Peripheral Nerve Sheath Tumor
Coplow
Mast Cell Tumor
ResultsAll periocular CMCTs were restricted to the eyelids. In addition to surgical excision, three cats were treated with adjunctive therapy (strontium-90 irradiation or cryotherapy) intraoperatively. Local tumor control was achieved in 22/23 cats with a minimum follow-up of 30 days (median follow-up time of 711 days); one cat developed disseminated CMCTs but no local recurrence. Cats with periocular CMCTs had a median survival time of 945 days. Metastatic disease involving peripheral lymph nodes or abdominal viscera was not detected in any cat at any time during the study. All periocularCMCTs were classified as low-grade based on histopathology, and complete excision was achieved in approximately 50% of cases.
Conclusions Surgical excision of periocular CMCTs in cats is an effective treatment option with rare local recurrence and metastases, even following incomplete surgical
What is this? What would you do? Blastomycosis6 days later
Incidence of Bartonella Infection in US Cats
20% OVERALL
Regions: 1.2.3.4.
17%9%
28%22%
States with the highest incidence of infectionStates with moderately high incidence of infectionStates with moderate incidence of infectionStates with low incidence of infection
Incidence of Bartonella infection in cats increases in hot and humid climates because fleas flourish in these conditions.
Jameson, et al. J Inf Dis 172: 1145-9, 1995. CDC
20% OVERALL
Pre-treatment
Post-treatment
Bartonella +
Bartonella -Anterior Uveitis OU
n DSH, 7 months oldn Negative for: FIV, FeLV, toxoplasmosis, and FIP
Anterior Uveitisn Diagnostic Tests
n History - Duration, progression of diseasen Physical examination n Complete blood countn WBC count, Differentialn Platlet count